Income Taxes (Components Of Income Before Income Taxes) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Income Taxes [Abstract]
U.S. income	$ 58,817	$ 38,398	$ 33,393
Non-U.S. income	46,001	18,951	31,947
Income before income taxes	104,818	57,349	65,340
Current, Federal	6,829	9,498	12,935
Current, State	872	149	1,398
Current, Non-U.S.	18,272	1,481	11,046
Total current provision	25,973	11,128	25,379
Deferred, Federal	10,853	3,862	313
Deferred, State	772	194	(1,438)
Deferred, Non-U.S.	(2,825)	3,106	(2,251)
Total deferred provision (benefit)	8,800	7,162	(3,376)
Provision for income taxes	$ 34,773	$ 18,290	$ 22,003